题解 | #密码验证合格程序#

def f(n):
    if len(n)<=8:
        return False
    s=n.replace(' ','').replace('\n','')
    a=[0,0,0,0]
    for i in s:
        if i.isupper():
            a[0]=1
        elif i.islower():
            a[1]=1
        elif i.isdigit():
            a[2]=1
        else:
            a[3]=1
    if sum(a)<3:
        return False
    for j in range(len(n)):
        if n[j:j+3] in n[j+3:]:
            return False
    return True
while True:
    try:
        print('OK' if f(input()) else 'NG')
    except:
        break